// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/appcache/appcache_working_set.h"

#include "base/logging.h"
#include "content/browser/appcache/appcache.h"
#include "content/browser/appcache/appcache_group.h"
#include "content/browser/appcache/appcache_response.h"

namespace content {

AppCacheWorkingSet::AppCacheWorkingSet()
    : is_disabled_(false)
{
}

AppCacheWorkingSet::~AppCacheWorkingSet()
{
    DCHECK(caches_.empty());
    DCHECK(groups_.empty());
    DCHECK(groups_by_origin_.empty());
}

void AppCacheWorkingSet::Disable()
{
    if (is_disabled_)
        return;
    is_disabled_ = true;
    caches_.clear();
    groups_.clear();
    groups_by_origin_.clear();
    response_infos_.clear();
}

void AppCacheWorkingSet::AddCache(AppCache* cache)
{
    if (is_disabled_)
        return;
    DCHECK(cache->cache_id() != kAppCacheNoCacheId);
    int64_t cache_id = cache->cache_id();
    DCHECK(caches_.find(cache_id) == caches_.end());
    caches_.insert(CacheMap::value_type(cache_id, cache));
}

void AppCacheWorkingSet::RemoveCache(AppCache* cache)
{
    caches_.erase(cache->cache_id());
}

void AppCacheWorkingSet::AddGroup(AppCacheGroup* group)
{
    if (is_disabled_)
        return;
    const GURL& url = group->manifest_url();
    DCHECK(groups_.find(url) == groups_.end());
    groups_.insert(GroupMap::value_type(url, group));
    groups_by_origin_[url.GetOrigin()].insert(GroupMap::value_type(url, group));
}

void AppCacheWorkingSet::RemoveGroup(AppCacheGroup* group)
{
    const GURL& url = group->manifest_url();
    groups_.erase(url);

    GURL origin_url = url.GetOrigin();
    GroupMap* groups_in_origin = GetMutableGroupsInOrigin(origin_url);
    if (groups_in_origin) {
        groups_in_origin->erase(url);
        if (groups_in_origin->empty())
            groups_by_origin_.erase(origin_url);
    }
}

void AppCacheWorkingSet::AddResponseInfo(AppCacheResponseInfo* info)
{
    if (is_disabled_)
        return;
    DCHECK(info->response_id() != kAppCacheNoResponseId);
    int64_t response_id = info->response_id();
    DCHECK(response_infos_.find(response_id) == response_infos_.end());
    response_infos_.insert(ResponseInfoMap::value_type(response_id, info));
}

void AppCacheWorkingSet::RemoveResponseInfo(AppCacheResponseInfo* info)
{
    response_infos_.erase(info->response_id());
}

} // namespace
